KIA78R25API~KIA78R37API
Fig.3 Ta - P
D
POWER DISSIPATION P
D
(W)
P
D
1:No heat sink
p
D
2:With infinite heat sink
Fig.4
RELATIVE OUTPUT VOLTAGE (%)
100
80
60
40
20
0
0
0.5
I
O
- V
O
20
P
D
2
15
10
5
P
D
1
0
-25
0
50
100
150
1.0
1.5
2.0
AMBIENT TEMPERATURE Ta ( C)
Note) Oblique line portion : Overheat
protection may operate in this
area.
OUTPUT CURRENT I
O
(A)
Fig.5-1 T
j
- Vo (KIA78R25)
OUTPUT VOLTAGE DEVIATION Vo (mV)
OUTPUT VOLTAGE DEVIATION Vo (mV)
150
100
50
0
-50
-100
-25
V
IN
=4.2V
I
O
=0.5A
Fig.5-2 T
j
- V
o
(KIA78R30)
150
100
50
0
V
IN
=4.7V
I
O
=0.5A
-50
-100
-25
0
25
50
75
100
125
0
25
50
75
100
125
JUNCTION TEMPERATURE T j ( C)
JUNCTION TEMPERATURE T
j
( C)
Fig.5-3 T
j
- V
o
(KIA78R33)
V
o
(mV)
V
o
(mV)
150
100
50
0
-50
-100
-25
150
100
50
0
Fig.5-4 T
j
-
V
o
(KIA78R35)
V
IN
=5.0V
I
O
=0.5A
V
IN
=5.2V
I
O
=0.5A
OUTPUT VOLTAGE DEVIATION
OUTPUT VOLTAGE DEVIATION
-50
-100
-25
0
25
50
75
100
125
0
25
50
75
100
JUNCTION TEMPERATURE T
j
( C)
JUNCTION TEMPERATURE T
j
( C)
2002. 10. 4
Revision No : 3
4/5
KEC [ KEC(KOREA ELECTRONICS) ]
